<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title></title>
  <style>
    .container {
      width: 500px;
      height: 500px;
      border: 1px solid black;
      background-size: cover;
    }

    .container button {
      background: transparent;
      height: 50px;
      width: 50px;
      margin: 0;
      padding: 0;
      outline: none;
      border: 1px solid #ccc;
      float: left;
      font-size: 26px;
    }

    #bank,
    #revokeBank {
      position: fixed;
      width: 80px;
      height: 30px;
      top: 200px;
      left: 700px;
    }

    #revokeBank {
      top: 240px;
    }
  </style>
</head>

<body>
  <div class="container"></div>
  <button id="bank">悔棋</button>
  <button id="revokeBank">撤销悔棋</button>
</body>　　
<script src="index.js"></script>
<script>
  //创建游戏并初始化
  new Game().initGame();
</script>

</html>